1 /* PR tree-optimization/86274 - SEGFAULT when logging std::to_string(NAN)
2    { dg-do run }
3    { dg-options "-O2 -Wall" } */
4 
5 #define X        "0xdeadbeef"
6 #define nan(x)   __builtin_nan (x)
7 
8 volatile double nan_0 = nan ("0");
9 volatile double nan_x = nan (X);
10 
main(void)11 int main (void)
12 {
13   char buf[80];
14 
15   /* Verify that folded results match those of the library calls.  */
16   int cst_n_0 = __builtin_sprintf (buf, "%g", nan ("0"));
17   int cst_n_x = __builtin_sprintf (buf, "%g", nan (X));
18 
19   int var_n_0 = __builtin_sprintf (buf, "%g", nan_0);
20   int var_n_x = __builtin_sprintf (buf, "%g", nan_x);
21 
22   if (cst_n_0 != var_n_0)
23     __builtin_abort ();
24 
25   if (cst_n_x != var_n_x)
26     __builtin_abort ();
27 
28   return 0;
29 }
30